Results 81 to 90 of about 4,253 (208)

A high spatial resolution Stokes polarimeter for motional Stark effect imaging

, 2016
We describe an enhanced temporally switched interfero-polarimeter that has been successfully deployed for high spatial resolution motional Stark effect imaging on the KSTAR superconducting tokamak.
Howard, John, Michael, Clive, Thorman, Alex   +2 more
core   +1 more source

Thermographic studies of outer target heat fluxes on KSTAR

Nuclear Materials and Energy, 2017
A new infra-red (IR) thermography system with high spatial resolution has been installed on KSTAR and is now mainly applied to measure the outer divertor heat load profile.
H.H. Lee, R.A. Pitts, C.S. Kang, S.T. Oh, J.G. Bak, S.H. Hong, H.M. Wi, Y.S. Kim, H.S. Kim, D.C. Seo, H.T. Kim, K.M. Kim   +11 more
doaj   +1 more source

Origin of the up/down poloidal asymmetric dependence of ELM control in ITER-like RMP configuration in KSTAR

Nuclear Fusion
Recent edge-localized modes (ELM) control experiments via resonant magnetic perturbation (RMP) in KSTAR have shown a strong up/down poloidal asymmetric coupling dependence.
Inhwan Choi, Yueqiang Liu, Yongkyoon In
doaj   +1 more source

3.6MW Power Supply System of the 170GHz ECH&CD System in KSTAR

EPJ Web of Conferences, 2012
A 3.6 MW (-66 kV/55 A) Gyrotron power supply system was developed for the 170 GHz ECH&CD gyrotron system in KSTAR. This power supply system consists of Cathode Power Supply(CPS), Anode Power Supply(APS) and Body Power Supply(BPS).
Joung Jin-Hyun, Bae Young-soon, Lee Seung-kyo, Seo Tae-won, Ahn Il-kun, Shim Eun-yong, Joung Mi   +6 more
doaj   +1 more source

Velocity Dispersion of Dissolving OB Associations Affected by External Pressure of Formation Environment

, 2004
This paper presents a possible way to understand dissolution of OB associations (or groups). Assuming rapid escape of parental cloud gas from associations, we show that the shadow of the formation environment for associations can be partially imprinted ...
Ann H. B., Battinelli P., Belikov A. N., Brown A. G. A., Burki G., Cameron L. M., Cameron L. M., Danilov V. M., de La Fuente Marcos R., Edvardsson B., Frolov V. M., Gieseking F., Gratton R. G., Hideyuki Kamaya, Hron J., Kaliberda V. S., Lee S.-W., Lynga G., McNamara B. J., Palous J., Panagia N., Sagar R., Sanner J., Starikova G. A., Wang J.-J.   +24 more
core   +2 more sources

Physics insights from a large-scale 2D UEDGE simulation database for detachment control in KSTAR

Nuclear Fusion
A large-scale database of two-dimensional UEDGE simulations has been developed to study detachment physics in KSTAR and to support surrogate models for control applications.
M. Zhao, X. Xu, B. Zhu, T.D. Rognlien, X. Ma, W.H. Meyer, K.B. Kwon, D. Eldon, N. Li, H. Lee, J. Hwang   +10 more
doaj   +1 more source

Ruling out Stellar Companions and Resolving the Innermost Regions of Transitional Disks with the Keck Interferometer

, 2009
With the Keck Interferometer, we have studied at 2 um the innermost regions of several nearby, young, dust depleted "transitional" disks. Our observations target five of the six clearest cases of transitional disks in the Taurus/Auriga star-forming ...
Akeson, Akeson, Andrea M. Ghez, Brown, Brown, Calvet, Calvet, D'Alessio, Duchêne, Elise Furlan, Espaillat, Espaillat, Espaillat, Flaherty, Furlan, Furlan, Ghez, Ghez, Hollenbach, Ireland, Jorg-Uwe Pott, Lada, Leinert, Marshall D. Perrin, Mathieu, McCabe, Meyer, Muzerolle, Muzerolle, Palla, Pinte, Quillen, Salyk, Schneider, Sicilia-Aguilar, Simon, Skrutskie, Stanimir Metchev, Stassun, Tannirkulam, Tom M. Herbst, Varnière   +41 more
core   +1 more source

Model Penempatan Guru Berasaskan Perlombongan Data

Journal of ICT in Education, 2019
Tujuan artikel ini adalah untuk mengenalpasti teknik pengelasan terbaik dan penerokaan pengetahuan baru terhadap data permohonan penempatan di Kementerian Pendidikan Malaysia (KPM).
Shamsul Saniron, Zulaiha Ali Othman
doaj  

Wall conditioning effects of boron powder injection in KSTAR with a tungsten divertor

Nuclear Fusion
Boron powder dropped into KSTAR plasmas decreased the radiated power, core electron density, and $Z_\mathrm {eff}$ , indicating that the ablated and redeposited boron powder helped to condition the plasma-facing surfaces.
Hanna Schamis, Erik P. Gilson, Hyungho Lee, Rajesh Maingi, SangKyeun Kim, Joseph A. Snipes, SeongMoo Yang, Alessandro Bortolon, Juhyeok Jang, Boseong Kim, Dongcheol Seo, Jaein Song, Hyunmyeong Lee, the KSTAR collaboration   +13 more
doaj   +1 more source

Evidence for a spectroscopic direct detection of reflected light from 51 Peg b

, 2015
The detection of reflected light from an exoplanet is a difficult technical challenge at optical wavelengths. Even though this signal is expected to replicate the stellar signal, not only is it several orders of magnitude fainter, but it is also hidden ...
Boisse, I., Cunha, D., Ehrenreich, D., Faria, J. P., Figueira, P., Lovis, C., Martins, J. H. C., Mayor, M., Melo, C., Montalto, M., Pepe, F., Santos, N. C., Sousa, S. G., Udry, S.   +13 more
core   +3 more sources